Re: regular expression with @@/

Interesting!

[keszler@tek src]# perl -le '
$x = "asdfXXsadf";
print "match" if $x =~ /\QXX\E/;
'
match
[keszler@tek src]# perl -le '
$x = "asdf@@sadf";
print "match" if $x =~ /@@/;
'
[keszler@tek src]# perl -le '
$x = "asdf@@sadf";
print "match" if $x =~ /\Q@@\E/;
'
[keszler@tek src]# perl -le '
$x = "asdf@@sadf";
print "match" if $x =~ /\@\@/;
'
[keszler@tek src]# perl -le '
$x = "asdf@@sadf";
print "match" if $x =~ /@/;
'
match
[keszler@tek src]# perl -le '
$x = "asdf@@sadf";
print "match" if $x =~ /@{2}/;
'
match
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Comment on Re: regular expression with @@/ Download Code

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Re^2: regular expression with @@/ by almut (Canon) on Dec 07, 2009 at 18:16 UTC
`$ perl -wle ' $x = "asdf@@sadf"; print "match" if $x =~ /\Q@@\E/; ' Possible unintended interpolation of @sadf in string at -e line 2. Name "main::sadf" used only once: possible typo at -e line 2.` [download] :)	[reply] [d/l]

Replies are listed 'Best First'.

Re^2: regular expression with @@/
by almut (Canon) on Dec 07, 2009 at 18:16 UTC

$ perl -wle '
$x = "asdf@@sadf";
print "match" if $x =~ /\Q@@\E/;
'
Possible unintended interpolation of @sadf in string at -e line 2.
Name "main::sadf" used only once: possible typo at -e line 2.
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[reply]
[d/l]